I haven't really settled into choosing a faction, Imperial or Rebel, but I think I'll end up fielding whatever allows me to throw the most defensive dice.
The big ships currently available add some great aesthetics to the gaming surfaces when surrounded by the fighters so it all looks very visually appealing. Especially with a black 'space' backdrop and some small asteroid tokens spread out on the board. I want to carve some asteroids out of foam and paint them up to add to the terrain. I've got a couple card-stock planets that look great on the playing surface and I want to get some more printed up in addition to a nebula or three.
This all runs dual duty as our gaming group is just about to start a Star Wars: Edge of the Empire role-playing campaign and the ships and terrain will make space encounters that much more cinematic. It also helps that the first two of the larger silhouette ships to be released are the yt1300, Millenium Falcon style, Corellian light freighter, which the starting adventure entails the party obtaining one for personal use and the Firespray 31 class patrol and attack craft like Slave-1 which I plan to create a bounty hunter NPC to follow them around in as they'll all start out wanted by a Hutt. Fun times. =)